Gaya APA

Albrecht, D, E., Murdock, S, H. (1990). The Sociology of U.S. agriculture : an ecological perspective / Don E. Albrecht, Steve H. Murdock (Ed.ke-1). : Iowa State University Press.

Gaya MLA

Albrecht, Don, E.., Murdock, Steve, H.. "The Sociology of U.S. agriculture : an ecological perspective / Don E. Albrecht, Steve H. Murdock". Ed.ke-1 : Iowa State University Press, 1990. Textbook.